:root{
  --ink:#10212b; --muted:#5d6b73; --line:#dce5e8; --paper:#f7faf9;
  --card:#ffffff; --accent:#197a78; --accent2:#e6f3f1; --warn:#fff5db;
  --max:1120px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:#fff;line-height:1.65}
a{color:#126b69;text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:#0b4d4b}.wrap{max-width:var(--max);margin:auto;padding:0 22px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:70px;gap:18px}
.brand{display:flex;gap:10px;align-items:center;text-decoration:none;color:var(--ink);font-weight:850;letter-spacing:-.02em}
.logo{width:34px;height:34px;border-radius:10px;background:linear-gradient(145deg,var(--accent),#64b3ae);display:grid;place-items:center;color:white;font-weight:900}
.navlinks{display:flex;gap:18px;align-items:center;font-size:.94rem}.navlinks a{text-decoration:none;color:var(--ink)}
.hero{background:linear-gradient(180deg,#eef8f6 0%,#fff 100%);padding:76px 0 50px}
.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:42px;align-items:center}
.eyebrow{text-transform:uppercase;letter-spacing:.13em;font-weight:800;font-size:.77rem;color:var(--accent)}
h1,h2,h3{line-height:1.15;letter-spacing:-.035em}h1{font-size:clamp(2.5rem,6vw,4.9rem);margin:.35rem 0 1.1rem}
h2{font-size:clamp(1.8rem,3vw,2.55rem);margin-top:2.5rem}h3{font-size:1.28rem;margin-top:1.8rem}
.lede{font-size:1.2rem;color:#34444c;max-width:750px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--accent);color:white!important;text-decoration:none;font-weight:800;border-radius:12px;padding:13px 18px;border:1px solid var(--accent)}
.btn.secondary{background:white;color:var(--ink)!important;border-color:var(--line)}.actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0}
.hero-card,.card,.callout,.compare{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 12px 30px rgba(22,63,66,.06)}
.hero-card svg{display:block;width:100%;height:auto}
.section{padding:54px 0}.muted-bg{background:var(--paper)}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.card h3{margin-top:0}.kicker{color:var(--muted);font-size:.95rem}.pill{display:inline-block;background:var(--accent2);color:#0f5f5c;padding:5px 9px;border-radius:999px;font-size:.78rem;font-weight:800}
.article{max-width:820px;margin:auto;padding:44px 22px 70px}.article h1{font-size:clamp(2.25rem,5vw,4rem)}
.article p,.article li{font-size:1.06rem}.article .intro{font-size:1.23rem;color:#40515a}
.toc{border-left:4px solid var(--accent);padding:12px 18px;background:var(--paper);margin:28px 0}
.notice{background:var(--warn);border:1px solid #eed99b;border-radius:14px;padding:15px 17px}
.disclosure{font-size:.92rem;background:#f4f7f7;border:1px solid var(--line);border-radius:12px;padding:13px 15px}
table{width:100%;border-collapse:collapse;margin:22px 0;font-size:.96rem}th,td{text-align:left;padding:13px 12px;border-bottom:1px solid var(--line);vertical-align:top}th{background:#f1f6f5}
.checks{padding-left:1.2rem}.checks li{margin:.45rem 0}.cta{margin:34px 0;background:#102f31;color:white;border-radius:18px;padding:28px}
.cta h2,.cta h3{margin-top:0;color:white}.cta p{color:#d9e9e8}.cta .btn{background:#fff;color:#103638!important;border-color:#fff}
.sourcebox{font-size:.9rem;color:var(--muted);border-top:1px solid var(--line);margin-top:40px;padding-top:18px}
.footer{border-top:1px solid var(--line);padding:36px 0;color:var(--muted);font-size:.9rem}.footer-grid{display:flex;justify-content:space-between;gap:25px;flex-wrap:wrap}
.breadcrumbs{font-size:.88rem;color:var(--muted);margin-bottom:16px}.breadcrumbs a{color:var(--muted)}
.tagline{max-width:430px}.small{font-size:.88rem;color:var(--muted)}
@media(max-width:800px){.hero-grid,.grid3,.grid2{grid-template-columns:1fr}.navlinks{display:none}.hero{padding-top:48px}.article{padding-top:30px}}


/* Header hardening for Cloudflare Pages */
.site-header{
  position:sticky;
  top:0;
  z-index:999;
  width:100%;
  background:#ffffff;
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 12px rgba(16,33,43,.04);
}
.site-header .wrap{
  width:100%;
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:72px;
  gap:18px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--ink)!important;
  text-decoration:none!important;
}
.navlinks{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:18px;
}
.navlinks a{
  display:inline-block;
  padding:8px 0;
  color:var(--ink)!important;
  text-decoration:none;
  font-weight:650;
}
.navlinks a:hover{
  color:var(--accent)!important;
}
.mobile-nav{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
}
.mobile-nav-inner{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px 16px;
  padding:12px 22px 16px;
}
.mobile-nav a{
  color:var(--ink);
  text-decoration:none;
  font-weight:700;
  padding:8px 0;
}

@media(max-width:800px){
  .site-header{position:relative}
  .nav{min-height:64px}
  .navlinks{display:none!important}
  .mobile-nav{display:block}
}